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JPL Small-Body Database Browser
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39400 (6808 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2039400
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1270036246961692 3.9701e-08  
a 3.105875299115967 2.5552e-08 au
q 2.711417878273941 1.2564e-07 au
i 5.225522419660746 6.4016e-06 deg
node 24.40959205218448 5.0661e-05 deg
peri 247.5969153793772 5.7258e-05 deg
M 315.9328959720399 2.606e-05 deg
tp 2458845.229576752189
(2019-Dec-27.72957675)
0.00014462 TDB
period 1999.283809866154
5.47
2.4672e-05
6.755e-08
d
yr
n .1800644802020884 2.222e-09 deg/d
Q 3.500332719957994 2.8797e-08 au
  Orbit Determination Parameters
   # obs. used (total)      672  
   data-arc span      21413 days (58.63 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:08:34  

Additional Information
 Earth MOID = 1.70049 au 
 Jupiter MOID = 1.62604 au 
 T_jup = 3.202 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO351107  
diameter diameter 5.688 km 1.320 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.087   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

39400 (6808 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 6808 P-L = 1999 TP75 = 1999 TU226 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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